CN116131650A - Bidirectional energy storage inverter - Google Patents

Bidirectional energy storage inverter Download PDF

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Publication number
CN116131650A
CN116131650A CN202310148645.9A CN202310148645A CN116131650A CN 116131650 A CN116131650 A CN 116131650A CN 202310148645 A CN202310148645 A CN 202310148645A CN 116131650 A CN116131650 A CN 116131650A
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CN
China
Prior art keywords
power tube
module
control module
inversion
resistor
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Pending
Application number
CN202310148645.9A
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Chinese (zh)
Inventor
邓勇明
陈雄伟
伍树林
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Shenzhen Cpkd Technology Co ltd
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Shenzhen Cpkd Technology Co ltd
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Priority to CN202310148645.9A priority Critical patent/CN116131650A/en
Publication of CN116131650A publication Critical patent/CN116131650A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
    • H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
    • H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
    • H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
    • H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/797—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

The invention discloses a bidirectional energy storage inverter, which relates to the technical field of power conversion and comprises an intelligent control module, a power supply module and a power supply module, wherein the intelligent control module is used for receiving signals and controlling the power supply module; the charge and discharge control module is used for controlling the charge and discharge of the energy storage module; the inversion control module is used for selecting a channel state connected with the inversion module and transmitting signals; the inversion module is used for inversion and rectification treatment and controlling the power tube circuit to be connected with the full-bridge inversion circuit; the switching control module is used for controlling the connection between the inversion module and the alternating current module; the alternating current module is used for outputting and providing alternating current; and the output detection module is used for detecting the voltage. The bidirectional energy storage inverter disclosed by the invention finishes inversion and rectification processing through the inversion module, controls energy storage and discharge of the energy storage module by matching with the charge-discharge control module, controls the inversion control module to connect the power tube circuit into the full-bridge inversion circuit according to the signal detected by the output detection module, and switches the path of the control module to control the output so as to maintain the work of the inversion module.

Description

Bidirectional energy storage inverter
Technical Field
The invention relates to the technical field of power conversion, in particular to a bidirectional energy storage inverter.
Background
The bidirectional energy storage inverter is the latest generation inverter in the current market, can convert alternating current electric energy into direct current electric energy and store the direct current electric energy in the energy storage device, and after the condition of power failure occurs, the inverter converts direct current in the energy storage device into alternating current for a user to use, and bidirectional conversion between power grid electric energy and energy of the energy storage device is provided for the user.
Disclosure of Invention
The embodiment of the invention provides a bidirectional energy storage inverter, which aims to solve the problems in the background technology.
According to an embodiment of the present invention, there is provided a bidirectional energy storage inverter including: the system comprises an energy storage module, a charge and discharge control module, an intelligent control module, an inversion control module, a switching control module, an alternating current module and an output detection module;
the energy storage module is used for storing the electric energy output by the charge-discharge control module and outputting the electric energy;
the intelligent control module is used for receiving the signals output by the output detection module, outputting first pulse signals and controlling the work of the charge-discharge control module, outputting control signals and controlling the work of the inversion control module and the switching control module, and outputting second pulse signals;
the charge-discharge control module is connected with the energy storage control module and the intelligent control module, and is used for controlling the charge-discharge control circuit to carry out voltage regulation on the electric energy output by the energy storage module through the first pulse signal and transmitting the electric energy to the inversion module, and is used for controlling the charge-discharge control circuit to carry out voltage regulation on the electric energy output by the inversion module through the first pulse signal and inputting the electric energy into the energy storage module;
the inversion control module is connected with the intelligent control module and used for controlling the analog switch circuit to select a passage connected with the inversion module through the control signal and transmitting the second pulse signal to the inversion module;
the inversion module is connected with the charge-discharge control module and the inversion control module, is used for receiving a second pulse signal transmitted by the inversion control module, is used for performing inversion treatment on input direct-current electric energy and rectifying treatment on input alternating-current electric energy through the full-bridge inversion circuit, and is used for controlling the power tube circuit to be connected into the full-bridge inversion circuit;
the switching control module is connected with the alternating current module and the intelligent control module and is used for receiving the second pulse signal and controlling the connection state of the inversion module and the alternating current module through the relay switch circuit;
the alternating current module is connected with the inversion module and used for receiving alternating current electric energy output by the inversion module and providing alternating current electric energy for the inversion module;
the output detection module is connected with the alternating current module and the intelligent control module and is used for detecting alternating current energy input into the alternating current module and amplifying and filtering the detected signals and transmitting the processed signals to the intelligent control module.
Compared with the prior art, the invention has the beneficial effects that: the bidirectional energy storage inverter disclosed by the invention has the advantages that the inversion module is controlled by the intelligent control module to complete inversion treatment and rectification treatment, the bidirectional conversion of electric energy is realized, the energy storage and discharge control of the energy storage module is controlled by the intelligent control module in cooperation with the charge-discharge control module, when the output of the inversion control module is abnormal, the intelligent control module controls the power tube circuit in the inversion module to be connected with the full-bridge inversion circuit according to the signal detected by the output detection module, the inversion channel is switched, the channel controlled by the switching control module is controlled, the normal work and normal alternating current power supply of the inversion module are maintained, the working efficiency of the inversion module is improved, the control structure of the module is simple and easy to implement, the required control pins are fewer, and the whole volume of the module is small.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic block diagram of a bidirectional energy storage inverter according to an embodiment of the present invention.
Fig. 2 is a circuit diagram of a bidirectional energy storage inverter provided by an example of the present invention.
Fig. 3 is a circuit diagram of an output detection module according to an embodiment of the present invention.
Fig. 4 is a circuit diagram of a switching control module provided by an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment 1 referring to fig. 1, a bidirectional energy storage inverter includes: the system comprises an energy storage module 1, a charge and discharge control module 2, an intelligent control module 3, an inversion module 4, an inversion control module 5, a switching control module 6, an alternating current module 7 and an output detection module 8;
specifically, the energy storage module 1 is configured to store the electric energy output by the charge-discharge control module 2, and output the electric energy;
the intelligent control module 3 is used for receiving the signal output by the output detection module 8, outputting a first pulse signal and controlling the work of the charge-discharge control module 2, outputting a control signal and controlling the work of the inversion control module 5 and the switching control module 6, and outputting a second pulse signal;
the charge-discharge control module 2 is connected with the energy storage control module and the intelligent control module 3, and is used for controlling the charge-discharge control circuit to regulate the voltage of the electric energy output by the energy storage module 1 through the first pulse signal and transmitting the electric energy to the inversion module 4, and is used for controlling the charge-discharge control circuit to regulate the voltage of the electric energy output by the inversion module 4 through the first pulse signal and inputting the electric energy into the energy storage module 1;
the inversion control module 5 is connected with the intelligent control module 3 and is used for controlling the analog switch circuit to select a passage connected with the inversion module 4 through the control signal and transmitting the second pulse signal to the inversion module 4;
the inversion module 4 is connected with the charge-discharge control module 2 and the inversion control module 5, and is used for receiving a second pulse signal transmitted by the inversion control module 5, performing inversion treatment on the input direct-current electric energy and rectifying treatment on the input alternating-current electric energy through the full-bridge inversion circuit, and controlling the power tube circuit to be connected with the full-bridge inversion circuit;
the switching control module 6 is connected with the alternating current module 7 and the intelligent control module 3, and is used for receiving the second pulse signal and controlling the connection state of the inversion module 4 and the alternating current module 7 through a relay switch circuit;
the alternating current module 7 is connected with the inversion module 4 and is used for receiving alternating current power output by the inversion module 4 and providing alternating current power for the inversion module 4;
and the output detection module 8 is connected with the alternating current module 7 and the intelligent control module 3, and is used for detecting alternating current energy input into the alternating current module 7 and amplifying and filtering the detected signal, and transmitting a processing signal to the intelligent control module 3.
In a specific embodiment, the energy storage module 1 is a dc energy storage device, which is not described herein; the charge and discharge control module 2 can adopt a bidirectional Boost-Buck circuit, and is controlled by the intelligent control module 3 to realize charge and discharge control of electric energy; the intelligent control module 3 can adopt a driving circuit and a micro-control circuit, wherein the driving circuit can adopt an IGBT driving device for improving the driving capability of the micro-control circuit, and the driving circuit is only used when driving the IGBT, and is not described herein, but the micro-control circuit can adopt a singlechip, a DSP and other components integrated with an arithmetic unit, a controller, a memory, an input-output unit and the like, so that the functions of signal processing, data storage, module control, timing control and the like are realized; the inverter module 4 can select a full-bridge inverter circuit and a power tube circuit, the full-bridge inverter circuit performs inversion and rectification treatment, and the power tube circuit can be used as a replacement circuit of the full-bridge inverter circuit and is used for replacing a power tube circuit with a fault in the full-bridge inverter circuit; the inversion control module 5 can select an analog switch circuit, and is controlled by the intelligent control module 3 to transmit a second pulse signal to the inversion module 4 according to the selected path; the switching control module 6 can adopt a relay circuit and is controlled by the intelligent control module 3 to realize the connection state of the full-bridge inverter circuit and the power tube circuit with the alternating current module 7; the ac module 7 may use an ac power supply or an ac consumption device, which will not be described herein; the output detection module 8 may employ an output detection processing circuit to detect the ac power input to the ac module 7 and amplify and filter the detected signal.
With reference to fig. 2, 3 and 4, based on embodiment 1, the energy storage module 1 includes an energy storage device; the charge-discharge control module 2 comprises a first capacitor C1, a first inductor L1, a first power tube Q1, a second power tube Q2, a first resistor R1 and a second capacitor C2; the intelligent control module 3 comprises a first controller U1;
specifically, the first end of the energy storage device is connected with one end of the first capacitor C1 and one end of the first inductor L1, the other end of the first inductor L1 is connected with the emitter of the second power tube Q2 and the collector of the first power tube Q1, the other end of the first capacitor C1, the second end of the energy storage device and the emitter of the first power tube Q1 are all grounded, the collector of the second power tube Q2 is connected with one end of the first resistor R1 and the first end of the second capacitor C2, the other end of the first resistor R1 and the second end of the second resistor R2 are all grounded, and the grid of the first power tube Q1 and the grid of the second power tube Q2 are respectively connected with the first IO end and the second IO end of the first controller U1.
In a specific embodiment, the first power tube Q1 and the second power tube Q2 may both be IGBTs, and form a bidirectional Boost-Buck circuit in cooperation with the first inductor L1 and the first capacitor C1, and are controlled by the first controller U1, so as to realize charge and discharge control of the energy storage device; the first resistor R1 is used for shunting, and the second capacitor C2 is used for filtering; the first controller U1 may be, but is not limited to, an STM32 single-chip microcomputer with an IGBT driver, or an ST89C52 single-chip microcomputer with an IGBT driver.
Further, the inverter module 4 includes a third power tube Q3, a fourth power tube Q4, a fifth power tube Q5, a sixth power tube Q6, a seventh power tube Q7 and an eighth power tube Q8;
specifically, the collector of the third power tube Q3 is connected to the collector of the fifth power tube Q5, the collector of the seventh power tube Q7, and the first end of the second capacitor C2, the emitter of the third power tube Q3 is connected to the collector of the fourth power tube Q4, the emitter of the fifth power tube Q5 is connected to the collector of the sixth power tube Q6, the emitter of the seventh power tube Q7 is connected to the collector of the eighth power tube Q8, and the emitters of the fourth power tube Q4, the emitter of the sixth power tube Q6, and the emitter of the eighth power tube Q8 are all grounded, and the gate of the third power tube Q3, the gate of the fourth power tube Q4, the gate of the fifth power tube Q5, the gate of the sixth power tube Q6, the gate of the seventh power tube Q7, and the gate of the eighth power tube Q8 are connected to the inverter control module 5.
In a specific embodiment, the third power tube Q3, the fourth power tube Q4, the fifth power tube Q5, the sixth power tube Q6, the seventh power tube Q7 and the eighth power tube Q8 may all be IGBTs, where the third power tube Q3, the fourth power tube Q4, the seventh power tube Q7 and the eighth power tube Q8 form a full-bridge inverter circuit, and the fifth power tube Q5 and the sixth power tube Q6 form a power tube circuit for replacing the third power tube Q3 and the fourth power tube Q4 with the seventh power tube Q7 and the eighth power tube Q8.
Further, the switching control module 6 comprises a first relay switch K1-1 and a second relay switch K2-1; the ac module 7 comprises ac means;
specifically, a first end of the first relay switch K1-1 is connected to a first end of the ac device and an emitter of the third power tube Q3, a first end of the second relay switch K2-1 is connected to a second end of the ac device and an emitter of the seventh power tube Q7, and a second end of the first relay switch K1-1 is connected to a second end of the second relay switch K2-1 and an emitter of the fifth power tube Q5.
In a specific embodiment, the first relay switch K1-1 and the second relay switch K2-1 can be normally open switches; the ac device may be an ac power source or an ac load, which will not be described herein.
Further, the switching control module 6 further includes a twelfth resistor R12, an eleventh resistor R11, a first relay K1, a tenth resistor R10, a first switching tube VT1, a ninth resistor R9, a second switching tube VT2, a second relay K2, and a third power source VCC3;
specifically, one end of the twelfth resistor R12 and one end of the eleventh resistor R11 are respectively connected to the eighth IO end and the tenth IO end of the first controller U1, the other end of the twelfth resistor R12 is connected to the base of the second switching tube VT2 and grounded through the tenth resistor R10, the other end of the eleventh resistor R11 is connected to the base of the first switching tube VT1 and grounded through the ninth resistor R9, the emitter of the second switching tube VT2 of the emitter of the first switching tube VT1 is grounded, the collector of the first switching tube VT1 and the collector of the second switching tube VT2 are respectively connected to one end of the first relay K1 and one end of the second relay K2, and the other end of the first relay K1 and the other end of the second relay K2 are connected to the third power VCC3.
In a specific embodiment, the first switching tube VT1 and the second switching tube VT2 may each be an NPN transistor, which respectively controls the operation of the first relay K1 and the second relay K2; the first relay K1 and the second relay K2 are respectively used for controlling the working states of the first relay switch K1-1 and the second relay switch K2-1, and are specifically controlled by a magnetic attraction mode, and details are not repeated herein.
Further, the inverter control module 5 includes a first analog switch J1;
specifically, the fourth end and the second end of the first analog switch J1 are respectively connected to the gate of the seventh power tube Q7 and the gate of the fifth power tube Q5, the ninth end and the eleventh end of the first analog switch J1 are respectively connected to the gate of the sixth power tube Q6 and the gate of the eighth power tube Q8, the fifth end and the twelfth end of the first analog switch J1 are both connected to the ninth IO end of the first controller U1, the tenth end and the sixth end of the first analog switch J1 are both connected to the tenth IO end of the first controller U1, the first end and the third end of the first analog switch J1 are both connected to the fifth IO end of the first controller U1, and the eighth end and the tenth end of the first analog switch J1 are both connected to the sixth IO end of the first controller U1.
In a specific embodiment, the first analog switch J1 may be a CD4066 chip, and is controlled by the first controller U1 to select a transmission path of an input pulse signal, so as to control the fifth power tube Q5 and the sixth power tube Q6 and the seventh power tube Q7 and the eighth power tube Q8.
Further, the inverter control module 5 further includes a second analog switch J2;
specifically, the fourth end and the second end of the second analog switch J2 are respectively connected to the gate of the third power tube Q3 and the gate of the fifth power tube Q5, the tenth end and the ninth end of the second analog switch J2 are respectively connected to the gate of the fourth power tube Q4 and the gate of the sixth power tube Q6, the first end and the third end of the second analog switch J2 are connected to the third IO end of the first controller U1, the eighth end and the tenth end of the second analog switch J2 are both connected to the fourth IO end of the third controller, the fifth end and the twelfth end of the second analog switch J2 are both connected to the seventh IO end of the first controller U1, and the tenth end and the sixth end of the second analog switch J2 are both connected to the eighth IO end of the first controller U1.
In a specific embodiment, the second analog switch J2 may be a CD4066 chip, and is controlled by the first controller U1 to select a transmission path of the input pulse signal, so as to control the fifth power tube Q5 and the sixth power tube Q6, and the third power tube Q3 and the fourth power tube Q4.
Further, the output detection module 8 includes a second resistor R2, a third resistor R3, a first power supply VCC1, a second power supply VCC2, a first transformer U2, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a third capacitor C3, a first operational amplifier OP1, a seventh resistor R7, and an eighth resistor R8;
specifically, the fourth end of the first transformer U2 is connected to the first end of the ac device through the second resistor R2, the fifth end of the first transformer U2 is connected to the second end of the ac device through the third resistor R3, the second end and the third end of the first transformer U2 are respectively connected to the first power VCC1 and the second power VCC2, the first end of the first transformer U2 is connected to one end of the sixth resistor R6 and one end of the fifth resistor R5 through the fourth resistor R4, the other end of the sixth resistor R6 is connected to the in-phase end of the first operational amplifier OP1 and is grounded through the third capacitor C3, the other end of the fifth resistor R5 is grounded, the inverting end of the first operational amplifier OP1 is connected to the output end of the first operational amplifier OP1 and one end of the eighth resistor R8 through the seventh resistor R7, and the other end of the eighth resistor R8 is connected to the eleventh IO end of the first controller U1.
In a specific embodiment, the first transformer U2 may be, but is not limited to, an LV28 voltage transformer; the first operational amplifier OP1 is optional, but not limited to TL082 operational amplifier.
According to the bidirectional energy storage inverter disclosed by the invention, the first controller U1 controls the first power tube Q1 to be closed and disconnected, the electric energy output by an energy storage device is improved, at the moment, the seventh IO end and the ninth IO end of the first controller U1 control the second analog switch J2 and the first analog switch J1 to work respectively, so that the first controller U1 controls the third power tube Q3, the fourth power tube Q4, the full-bridge inverter circuit formed by the seventh power tube Q7 and the eighth power tube Q8 to perform inversion treatment so as to transmit the electric energy to an alternating current device, the first mutual inductor U2 detects the alternating current voltage input to the alternating current device, the first operational amplifier OP1 is used for processing and transmitting the electric energy to the first controller U1, and if the first controller U1 judges that the detected alternating current voltage is abnormal, the eighth IO end of the first controller U1 controls the second analog switch J2 to work, the third power tube Q3, the fourth power tube Q4, the fifth power tube Q5 and the sixth power tube Q6 form the full-bridge inverter circuit to perform inversion treatment, and simultaneously control the full-bridge inverter circuit formed by the fourth power tube Q7, the fourth power tube Q6 and the full-bridge inverter circuit formed by the seventh power tube Q6, and the first power tube Q1 is controlled by the fifth power tube Q6, and the fifth power tube Q1 is used for conducting the electric energy to control the full-bridge inverter circuit, and the electric energy is conducted by the fifth power tube Q1, and the fifth power tube Q1 is conducted, and the fifth power tube Q1 is controlled to finish when the first power tube Q1 is judged to be abnormal, and the fifth through the detected, and the fifth power tube is conducted, and the fifth through the fifth IO end is controlled, and the fifth power switch is made.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (8)

1. A bi-directional energy storage inverter, characterized by:
the bi-directional energy storage inverter includes: the system comprises an energy storage module, a charge and discharge control module, an intelligent control module, an inversion control module, a switching control module, an alternating current module and an output detection module;
the energy storage module is used for storing the electric energy output by the charge-discharge control module and outputting the electric energy;
the intelligent control module is used for receiving the signals output by the output detection module, outputting first pulse signals and controlling the work of the charge-discharge control module, outputting control signals and controlling the work of the inversion control module and the switching control module, and outputting second pulse signals;
the charge-discharge control module is connected with the energy storage control module and the intelligent control module, and is used for controlling the charge-discharge control circuit to carry out voltage regulation on the electric energy output by the energy storage module through the first pulse signal and transmitting the electric energy to the inversion module, and is used for controlling the charge-discharge control circuit to carry out voltage regulation on the electric energy output by the inversion module through the first pulse signal and inputting the electric energy into the energy storage module;
the inversion control module is connected with the intelligent control module and used for controlling the analog switch circuit to select a passage connected with the inversion module through the control signal and transmitting the second pulse signal to the inversion module;
the inversion module is connected with the charge-discharge control module and the inversion control module, is used for receiving a second pulse signal transmitted by the inversion control module, is used for performing inversion treatment on input direct-current electric energy and rectifying treatment on input alternating-current electric energy through the full-bridge inversion circuit, and is used for controlling the power tube circuit to be connected into the full-bridge inversion circuit;
the switching control module is connected with the alternating current module and the intelligent control module and is used for receiving the second pulse signal and controlling the connection state of the inversion module and the alternating current module through the relay switch circuit;
the alternating current module is connected with the inversion module and used for receiving alternating current electric energy output by the inversion module and providing alternating current electric energy for the inversion module;
the output detection module is connected with the alternating current module and the intelligent control module and is used for detecting alternating current energy input into the alternating current module and amplifying and filtering the detected signals and transmitting the processed signals to the intelligent control module.
2. The bi-directional energy storage inverter of claim 1, wherein said energy storage module comprises an energy storage device; the charge-discharge control module comprises a first capacitor, a first inductor, a first power tube, a second power tube, a first resistor and a second capacitor; the intelligent control module comprises a first controller;
the first end of energy storage device connects the one end of first electric capacity and the one end of first inductance, the projecting pole of second power tube and the collecting electrode of first power tube are connected to the other end of first electric capacity, the second end of energy storage device and the projecting pole of first power tube all ground connection, the one end of first resistance and the first end of second electric capacity are connected to the collecting electrode of second power tube, the other end of first resistance and the second end of second resistance all ground connection, the grid of first power tube and the first IO end and the second IO end of first controller are connected respectively to the grid of second power tube.
3. The bi-directional energy storage inverter of claim 2, wherein the inverter module comprises a third power tube, a fourth power tube, a fifth power tube, a sixth power tube, a seventh power tube, and an eighth power tube;
the collector of the third power tube is connected with the collector of the fifth power tube, the collector of the seventh power tube and the first end of the second capacitor, the emitter of the third power tube is connected with the collector of the fourth power tube, the emitter of the fifth power tube is connected with the collector of the sixth power tube, the emitter of the seventh power tube is connected with the collector of the eighth power tube, the emitter of the fourth power tube, the emitter of the sixth power tube and the emitter of the eighth power tube are grounded, and the grid electrode of the third power tube, the grid electrode of the fourth power tube, the grid electrode of the fifth power tube, the grid electrode of the sixth power tube, the grid electrode of the seventh power tube and the grid electrode of the eighth power tube are connected with the inversion control module.
4. A bi-directional energy storage inverter according to claim 3, wherein said switching control module comprises a first relay switch, a second relay switch; the alternating current module comprises an alternating current device;
the first end of the first relay switch is connected with the first end of the alternating current device and the emitter of the third power tube, the first end of the second relay switch is connected with the second end of the alternating current device and the emitter of the seventh power tube, and the second end of the first relay switch is connected with the second end of the second relay switch and the emitter of the fifth power tube.
5. The bi-directional energy storage inverter of claim 4, wherein the switching control module further comprises a twelfth resistor, an eleventh resistor, a first relay, a tenth resistor, a first switching tube, a ninth resistor, a second switching tube, a second relay, and a third power supply;
one end of the twelfth resistor and one end of the eleventh resistor are respectively connected with the eighth IO end and the tenth IO end of the first controller, the other end of the twelfth resistor is connected with the base electrode of the second switching tube and grounded through the tenth resistor, the other end of the eleventh resistor is connected with the base electrode of the first switching tube and grounded through the ninth resistor, the emitter electrodes of the second switching tube of the emitter electrodes of the first switching tube are grounded, the collector electrodes of the first switching tube and the collector electrodes of the second switching tube are respectively connected with one end of the first relay and one end of the second relay, and the other end of the first relay and the other end of the second relay are connected with a third power supply.
6. A bi-directional energy storage inverter according to claim 3, wherein said inverter control module comprises a first analog switch;
the fourth end and the second end of the first analog switch are respectively connected with the grid electrode of the seventh power tube and the grid electrode of the fifth power tube, the ninth end and the eleventh end of the first analog switch are respectively connected with the grid electrode of the sixth power tube and the grid electrode of the eighth power tube, the fifth end and the twelfth end of the first analog switch are respectively connected with the ninth IO end of the first controller, the tenth end and the sixth end of the first analog switch are respectively connected with the tenth IO end of the first controller, the first end and the third end of the first analog switch are respectively connected with the fifth IO end of the first controller, and the eighth end and the tenth end of the first analog switch are respectively connected with the sixth IO end of the first controller.
7. The bi-directional energy storage inverter of claim 6, wherein said inverter control module further comprises a second analog switch;
the fourth end and the second end of the second analog switch are respectively connected with the grid electrode of the third power tube and the grid electrode of the fifth power tube, the tenth end and the ninth end of the second analog switch are respectively connected with the grid electrode of the fourth power tube and the grid electrode of the sixth power tube, the first end and the third end of the second analog switch are connected with the third IO end of the first controller, the eighth end and the tenth end of the second analog switch are both connected with the fourth IO end of the second controller, the fifth end and the twelfth end of the second analog switch are both connected with the seventh IO end of the first controller, and the tenth end and the sixth end of the second analog switch are both connected with the eighth IO end of the first controller.
8. The bi-directional energy storage inverter of claim 4, wherein the output detection module comprises a second resistor, a third resistor, a first power source, a second power source, a first transformer, a fourth resistor, a fifth resistor, a sixth resistor, a third capacitor, a first op-amp, a seventh resistor, and an eighth resistor;
the fourth end of the first transformer is connected with the first end of the alternating current device through a second resistor, the fifth end of the first transformer is connected with the second end of the alternating current device through a third resistor, the second end and the third end of the first transformer are respectively connected with a first power supply and a second power supply, the first end of the first transformer is connected with one end of a sixth resistor and one end of a fifth resistor through a fourth resistor, the other end of the sixth resistor is connected with the same-phase end of the first operational amplifier and is grounded through a third capacitor, the other end of the fifth resistor is grounded, the inverting end of the first operational amplifier is connected with the output end of the first operational amplifier and one end of an eighth resistor through a seventh resistor, and the other end of the eighth resistor is connected with the eleventh IO end of the first controller.
CN202310148645.9A 2023-02-03 2023-02-03 Bidirectional energy storage inverter Pending CN116131650A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117154909A (en) * 2023-10-31 2023-12-01 南方电网数字电网研究院有限公司 Electric automobile alternating-current charging pile control circuit capable of improving power supply quality
CN117691672A (en) * 2023-12-20 2024-03-12 山东泛在新能源集团股份有限公司 Wind power generation energy storage inverter circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117154909A (en) * 2023-10-31 2023-12-01 南方电网数字电网研究院有限公司 Electric automobile alternating-current charging pile control circuit capable of improving power supply quality
CN117154909B (en) * 2023-10-31 2024-04-05 南方电网数字电网研究院股份有限公司 Electric automobile alternating-current charging pile control circuit capable of improving power supply quality
CN117691672A (en) * 2023-12-20 2024-03-12 山东泛在新能源集团股份有限公司 Wind power generation energy storage inverter circuit
CN117691672B (en) * 2023-12-20 2024-05-03 山东泛在新能源集团股份有限公司 Wind power generation energy storage inverter circuit

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